Share Email Print
cover

Proceedings Paper

Near-surface variband layers with small composition gradient as factors for the effective increase in photoresponsivity of an infrared HgCdTe photoconductive device (photoresistor)
Author(s): Albina A. Drugova; Vyacheslav A. Kholodnov
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

It is shown that near-surface variband layers can afford the maximally possible photomodulation of conductivity of CdHgTe n-type samples for 8 - 12 and 3 - 5 micron light wavelengths. The photomodulation efficiency will be identical to that for absence of surface recombination. This is caused by the shaping of such photocarrier distribution which inhibits photocarrier diffusion to the surfaces even under small variband fields Evar. Therefore the number of defects in the variband layers can be decrease significantly at the cost of decrease in the gradient of mole composition of these layers.

Paper Details

Date Published: 10 June 1999
PDF: 6 pages
Proc. SPIE 3819, International Conference on Photoelectronics and Night Vision Devices, (10 June 1999); doi: 10.1117/12.350884
Show Author Affiliations
Albina A. Drugova, ORION Research, Development, and Production Ctr. (Russia)
Vyacheslav A. Kholodnov, ORION Research, Development, and Production Ctr. (Russia)


Published in SPIE Proceedings Vol. 3819:
International Conference on Photoelectronics and Night Vision Devices
Anatoly M. Filachev, Editor(s)

© SPIE. Terms of Use
Back to Top